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Finding the Fourth Proportional to 9,076,352.10, 12,738,779.40 and 9,076,352.10

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Solution

The fourth proportional to 9,076,352.10, 12,738,779.40 and 9,076,352.10 is: 12,738,779.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,076,352.10 : 12,738,779.40 = 9,076,352.10 : x
  2. Step 2: Convert to fraction form
    9,076,352.10/12,738,779.40 = 9,076,352.10/x
  3. Step 3: Cross multiply
    9,076,352.10x = 12,738,779.40 × 9,076,352.10
  4. Step 4: Simplify right side
    9,076,352.10x = 115,621,647,158,626.73
  5. Step 5: Solve for x
    x = 115,621,647,158,626.73/9,076,352.10
  6. Step 6: Final answer
    x = 12,738,779.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.